Attaching means for jewelry



Mgrch 7, 1950 v 1.. KRAMER 2,499,592

ATTACHING MEANS FOR JEWELRY Filed March is, 1949 oooooa mooaaoaonooa anaoooooo' INVENTOR LOUIS KRAMER oooouooooooonaoo mucoaoooaoo ATTORNEY Patented Mar. 7, 1950 UNITED STATES. PATENT OFFICE 2,499,592- ATTAGHINGIMEANS FOR JEWELRY Louis Kramer, Forest Hills, N. Y; Application-March 15, 1949, Serial No. 81,491

4'Cl'aims. 1

This invention reatesto a device easy and quick adjustment of a cha n.

Broadly, it is an object of the invention to provide an inexpensive and simple seat in which the end of a chain may be firmly and quickly fastened.

More particularly, it is an object of the invention to provide one or more seats or fastening units in combinat on with a clasp which allows the end of a well-known chain to be locked within the seat and permits a person to shorten the cha n to any desired length by severing the link between the chain units with cutt ng plyers.

Heretofore, it was necessary for a skilled jeweler or jewelry mechanic to shorten a chain to fit the wrist or neck. With my device, however, anyone who can handle a pair of plyers can sever the chain to the desired length and lock the ends of the chain within the seats provided at the op osed ends of the clasp.

For a fuller understanding of the nature and objects of my invention, reference is had to the following detailed description, in connection with the accompanying drawings, in which:

Fig. 1 is an enlarged plan view of a jewelry clasp showing the ends of a chain within the seats provided. at the opposed ends of the clasp, part of the cha n being broken away.

Fig. 2 is an edge view thereof, partly in section.

Fig. 3 is an enlarged perspective view of the seat for one end of the chain.

Fig. 4 is a partial enlarged plan view of a modified clasp and chain adapted for a double strand chain, and

Fig. 5 is a partial enlarged plan view of another modified clasp and chain adapted for a triple strand chain.

Referring to the drawings, numeral H3 represents a well-known type of clasp, preferably made of metal, used in the jewelry industry for wrist bands and necklaces, and having a hinge H at one end and a tension extension 12 at the opposite end to engage the end of the base l3 of the opening member. A projecting tongue I4 is provided on the extension l2 to permit the finger nail to open the clasp. One end of the base I3 is pivotally attached to pin l5 provided between the claws of the U-shaped member Hi and another pin I1 is provided between the claws of the opposite U-shaped member 8 for permitting the opening member [9 to engage the pin l1, thus closing the clasp ID, as shown in Figs. 1 and 2.

At each end ofthe clasp is there is a substantially square shaped hollow metal seat 2!), best to permit shown inFig.v 3, comprisinga bottom 2|, back 22 and opposed sides 23-23 with upper extending projections 24-44 which, when bent inwardly, may be said to comprise the front. Projections 24 are approximately one-half the height of the sides 23 and one-half the width of the hollow seat 20.

The type of chain 25 shown in the drawing is old and well-known in the jewelry industry and comprises substantially square units 25 which are held together by links 21. The square units 26 have prongs 28 at the corners and are adapted to receive stones 29 which cover the ends of the links 21.

In order to fasten the chain 25 to the clasp ID, the end unit 26 is placed within the hollow metal seat 29, which is adapted to receive the unit 26, and is then pressed inwardly until it touches the bottom 21 of the seat. The sides 23-23 are of the same height as the unit 25. The projections 24-24 are then bent inwardly until they are at right angles to the sides 23-43, as shown on the left of Fig. l, the right one being shown in open position. It should be noted that the projections 24 close over the link 21, thus preventing the end of the chain from disengaging itself from the seat 20.

In order to shorten the chain 25, all that is necessary is to cut the link 21 between any two units 26. Projections 24 may be readily bent open, if desired, and the end unit inserted in the seat 29, as hereinbefore described.

In Fig. 4, a double chain I25 is shown to engage a double seat I20. One seat is shown with projections I24 in open position and the other seat shows the projections 52A in closed or locked position over the link I21. The method and construction is the same as shown in Figs. 1, 2 and 3, except that provision is made for a double chain.

In Fig. 5, a triple chain 225 is shown to engage a triple seat 228. One seat is shown with projections 224 in open position and the other two seats show the projections 224 in closed position locked over the links 221. The method of construction is the same shown in Figs. 1, 2 and 3, except that provision is made for a triple chain.

It is obvious that the seats 20 may be multiplied along a wider clasp to receive a multiplicity of chains. It is also obvious that the units of chain may be made of different shapes to look within seats of shapes similar to the units of chain and adapted to receive and lock the end units of such that a single proplace of obvious 24 can be used in chain. ltris further jecting extension, like the opposed projections 2424 with the same effective results. Such modifications can readily be made without departing from the general spirit of the invention.

I claim:

1. The combination of a jewelry clasp having a hollow metal seat at opposed ends of said clasp,

I said seats having upper projections at the outer ends for bending inwardly, with a chain, said and locked therein by said projections.

4. The combination of a jewelry clasp having a substantially square hollow metal seat at opposed ends of said clasp, said seats comprising a bottom,

proximately half the height and width of said seat with a chain, said chain comprising units, each of said units held together by a link, said units adapted to be received within said opposed seats and locked therein by said projections.

LOUIS KRAMER.

No references cited. 

